As for the Cromwell, I'll also cite Wiki:
The Cromwell was the fastest British tank to serve in the Second World War[citation needed], with a top (ungoverned) speed of 40 mph (64 km/h). However this speed proved too much for even the Christie suspension and the engine was governed to give a top speed of 32 mph (51 km/h), which was still fast for its time. Thanks to its Christie parentage the Cromwell was very agile on the battlefield. The dual purpose 75 mm main gun fired the same ammunition as the US 75 mm gun and therefore it had around the same HE and armour-piercing capabilities as the 75 mm equipped Sherman tank. The armour on the Cromwell ranged from 8 mm up to 76 mm thick overall. However, on all-welded vehicles built by BRCW Co. Ltd, the weight saved by the welding allowed for the fitting of appliqué armour plates on the nose, vertical drivers' plate and turret front, increasing the maximum thickness to 102 mm. In period photos, these vehicles are identified by their War Department numbers carrying the suffix W, i.e. T121710W. This armour compared well with that of the Sherman although the Cromwell did not share the Sherman’s sloped glacis plate. The Cromwell crews in North-West Europe succeeded in outflanking the heavier and more sluggish German tanks with superior speed, manoeuvrability and reliability. However, the Cromwell was still not a match for the best German armour and British tank design would go through another stage, the Comet tank, before going ahead in the tank development race with the Centurion tank.
I still think of it as a bit of a Sherman-level pos on an individual basis. Comet and Pershing are genuine late-war monsters, competitive 1:1 with the Panther. This, though, is a pos, plain and simple. I also read that most of the cruiser-type tanks suffered reliability issues.
Anyway, I'd say add it. It's a POS and would make a nice target. We probably need the Panter as well. And what about the total dearth of indirect-fire weapons (imagine shelling a base from the comfort of an SP155mm gun)? That should rile up the hornet's nest and motivate larger numbers of attack craft in the air at any given time. What about the absence of assault guns like the StuGs and SUs? I magine using an SU152 on ANYTHING. "Clearly, even low velocity weapons of large caliber can still do considerable damage to tanks".
I remember that as the caption beneath the photo of a PzIV that had been literally spread across the snow by a direct hit from an SU-152. The turret was upside down and displaced from the hull by more that the length of the hull - itself looking oddly disassembled.
More is better. HTC can do little wrong by adding just about anything.
